
554 Chapter 5—Mobile IPv6
a home agent. A receiver node of a Router Advertisement message can obtain the address
of a home agent from the Prefix Information Option that has this flag.
5.11.22 Advertisement Interval Option—nd_opt_adv_interval{} Structure
The nd_opt_adv_interval{} structure represents the Advertisement Interval option
described in Section 5.3.6. Listing 5-20 shows the definition of the Advertisement Interval option.
Listing 5-20
icmp6.h
518 struct nd_opt_adv_interval { /* Advertisement interval option */
519 u_int8_t nd_opt_ai_type;
520 u_int8_t nd_opt_ai_len;
521 u_int16_t nd_opt_ai_reserved;
522 u_int32_t nd_opt_ai_interval;
523 } __attribute__((__packed__)); ...